Aliexpress
There’re some similar items on Aliexpress in my database. There may be some other items though.
| Image | Product (link) | Price | Coupons |
|---|---|---|---|
 |
Xiaomi Watch S3 AMOLED Smart Watch | 129.59 USD | – |
 |
Xiaomi Watch S3 AMOLED Smart Watch | 134.05 USD | – |
More on Aliexpress… Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (79.54 USD): aff7off
Coupon (80.40 USD): affiliate6
(CouponsFromChina.com tip: apply it in your cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): XMSH, 2019SPEDM, bgssaff9
(probably won’t work, but you can try them out)
Price history and price alert
Do you need price history chart (for all/most countries) for Xiaomi Smart OLED Air Quality Monitor? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).